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[`Plugin`](Plugin) › [`onExternalSettingsChange`](Plugin/onExternalSettingsChange)
## Plugin.onExternalSettingsChange() method
Called when the `data.json` file is modified on disk externally from Obsidian. This usually means that a Sync service or external program has modified the plugin settings.
Implement this method to reload plugin settings when they have changed externally.
**Signature:**
```typescript
onExternalSettingsChange?(): any;
```
**Returns:**
`any`